GENERAL DESCRIPTION

The AD9739 is a 14-bit, 2.5 GSPS high performance RF digital-to-analog converter (DAC) capable of synthesizing wideband signals from dc up to 3.0 GHz. Its DAC core features a quad switch architecture that provides exceptionally low distortion performance with an industry-leading direct RF synthesis capability. This feature enables multicarrier generation up to the Nyquist frequency in baseband mode as well as second and third Nyquist zones in mix mode. The output current can be programmed over the 8.66 mA to 31.66 mA range.

FEATURES

Direct RF synthesis at 2.5 GSPS update rate

DC to 1.25 GHz in baseband mode

1.25 GHz to 3.0 GHz in mix mode

Industry leading single/multicarrier IF or RF synthesis

fOUT = 350 MHz, ACLR =80 dBc

fOUT = 950 MHz, ACLR = 78 dBc

fOUT = 2100 MHz, ACLR = 69 dBc

Dual-port LVDS data interface

Up to 1.25 GSPS operation

Source synchronous DDR clocking

Pin-compatible with the AD9739A

Multichip synchronization capability

Programmable output current: 8.7 mA to 31.7 mA

Low power: 1.16 W at 2.5 GSPS

APPLICATIONS

Broadband communications systems

Military jammers

Instrumentation, automatic test equipment

Radar, avionics

AD9739属于开发板，套件，编程器 > 评估板 - 数模转换器（DAC）。亚德诺半导体技术有限公司制造生产的AD9739评估板 - 数模转换器（DAC）该系列产品提供了一种方便的方法，在经过验证的设计环境中对用于将数字数据转换为模拟格式的器件进行性能或特性评估。重点器件涵盖范围从以适合学生或爱好者使用的方式实现的适度功能器件，到适合电信基础设施应用的高级器件。